{
  "schema_version": "compare-page.v2",
  "page_id": "breast-pumps-compared-by-leak-protection",
  "url": "https://robotrunk.com/compare/want/breast-pumps-compared-by-leak-protection",
  "title": "Breast pumps compared by leak protection",
  "question": "Which breast pump offers the strongest protection against milk leaks, based on the checked facts?",
  "answer": "Willow Pump Willow 360® Wearable Breast Pump: The maker says the pump has a patent-pending latch designed to be leak-proof in any position.\nWillow Pump Willow 360: The pump's latch is patent-pending and claimed to be leak-proof whatever position the wearer is in.\nBoon TROVE 2PK: Reports the Boon Trove is solid with no unplugged hole, so it should not leak.\nWillow Pump Willow Go: It removes enough milk for sessions away from a plug-in pump, but suction feels less strong than hospital-grade and it lacks the older Willow’s leak-proof any-position freedom.",
  "kind": "breast pump",
  "market": "US",
  "generated_at": "2026-10-26T22:28:24.625Z",
  "columns": [
    "Leak-proofing",
    "Fit",
    "Milk collection"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p1.f2",
      "product": "Willow Pump Willow 360® Wearable Breast Pump",
      "field": "leak-proofing",
      "value": "The maker says the pump has a patent-pending latch designed to be leak-proof in any position.",
      "stated_as": "The only pump with a patent-pending latch that’s leak-proof in any position.",
      "source_type": "guide",
      "source_url": "https://onewillow.com/products/willow-pump-360",
      "source_read_at": "2026-10-26T00:59:31.829Z"
    },
    {
      "ref": "p1.f5",
      "product": "Willow Pump Willow 360® Wearable Breast Pump",
      "field": "Collection options",
      "value": "This review says the reusable 360 container can replace bags, but bags are still necessary if the container set was not bought.",
      "stated_as": "This review says the reusable 360 container can replace bags, but bags are still necessary if the container set was not bought.",
      "source_type": "review",
      "source_url": "https://whichbreastpump.com/blogs/reviews/willow-360/",
      "source_read_at": "2026-10-26T01:00:25.762Z"
    },
    {
      "ref": "p1.f6",
      "product": "Willow Pump Willow 360® Wearable Breast Pump",
      "field": "Housing fit",
      "value": "This blog says the 360 housing is less flexible than the 3.0, which may give a more secure fit but a less natural shape and greater reliance on a well-fitted bra.",
      "stated_as": "This blog says the 360 housing is less flexible than the 3.0, which may give a more secure fit but a less natural shape and greater reliance on a well-fitted bra.",
      "source_type": "blog",
      "source_url": "https://www.genuinelactation.com/blog-for-breastfeeding-families/willow-30-and-willow-360-a-true-innovation-or-just-marketing-hype",
      "source_read_at": "2026-10-26T01:00:28.902Z"
    },
    {
      "ref": "p2.f2",
      "product": "Willow Pump Willow 360",
      "field": "leak protection",
      "value": "The pump's latch is patent-pending and claimed to be leak-proof whatever position the wearer is in.",
      "stated_as": "The only pump with a patent-pending latch that’s leak-proof in any position.",
      "source_type": "guide",
      "source_url": "https://onewillow.com/products/willow-360-and-pump-anywhere-case-bundle",
      "source_read_at": "2026-10-26T00:46:10.151Z"
    },
    {
      "ref": "p2.f10",
      "product": "Willow Pump Willow 360",
      "field": "bra fit",
      "value": "Because the housing is less flexible than the earlier model, the pump is said to depend more heavily on a well-fitting, supportive bra.",
      "stated_as": "Because the housing is less flexible than the earlier model, the pump is said to depend more heavily on a well-fitting, supportive bra.",
      "source_type": "blog",
      "source_url": "https://www.genuinelactation.com/blog-for-breastfeeding-families/willow-30-and-willow-360-a-true-innovation-or-just-marketing-hype",
      "source_read_at": "2026-10-26T00:46:38.450Z"
    },
    {
      "ref": "p2.f12",
      "product": "Willow Pump Willow 360",
      "field": "milk storage compatibility",
      "value": "The pump works with either self-sealing bags or reusable milk containers, which the maker says no other pump does.",
      "stated_as": "The only pump compatible with self-sealing bags or reusable milk containers.",
      "source_type": "guide",
      "source_url": "https://onewillow.com/products/willow-360-and-pump-anywhere-case-bundle",
      "source_read_at": "2026-10-26T00:46:10.151Z"
    },
    {
      "ref": "p3.f3",
      "product": "Boon TROVE 2PK",
      "field": "what it is",
      "value": "TROVE is a passive silicone breast pump that sits under a bra and collects milk via suction, so milk is not lost to a disposable breast pad.",
      "stated_as": "Boon’s TROVE passive breast pump helps you collect the extra that would otherwise be lost to a disposable breast pad. TROVE sits smoothly and securely under your bra and provides firm suction that discreetly collects milk.",
      "source_type": "guide",
      "source_url": "https://booninc.com/boon-trove-silicone-breast-pump-2-pump-pack-with-plugs-travel-storage-pouch/",
      "source_read_at": "2026-10-08T20:22:30.015Z"
    },
    {
      "ref": "p3.f4",
      "product": "Boon TROVE 2PK",
      "field": "leak prevention",
      "value": "Reports the Boon Trove is solid with no unplugged hole, so it should not leak.",
      "stated_as": "Reports the Boon Trove is solid with no unplugged hole, so it should not leak.",
      "source_type": "blog",
      "source_url": "https://bemybreastfriend.com/blogs/breast-pump-comparisons/fave-breast-pumping-picks",
      "source_read_at": "2026-10-08T20:22:45.386Z"
    },
    {
      "ref": "p3.f9",
      "product": "Boon TROVE 2PK",
      "field": "fit",
      "value": "Reports it sits in the bra cup without getting knocked off.",
      "stated_as": "Reports it sits in the bra cup without getting knocked off.",
      "source_type": "blog",
      "source_url": "https://bemybreastfriend.com/blogs/breast-pump-comparisons/fave-breast-pumping-picks",
      "source_read_at": "2026-10-08T20:22:45.386Z"
    },
    {
      "ref": "p4.f4",
      "product": "Willow Pump Willow Go",
      "field": "output",
      "value": "It removes enough milk for sessions away from a plug-in pump, but suction feels less strong than hospital-grade and it lacks the older Willow’s leak-proof any-position freedom.",
      "stated_as": "It removes enough milk for sessions away from a plug-in pump, but suction feels less strong than hospital-grade and it lacks the older Willow’s leak-proof any-position freedom.",
      "source_type": "review",
      "source_url": "https://www.reviewed.com/parenting/content/willow-go-pump-review",
      "source_read_at": "2026-10-26T00:50:17.205Z"
    },
    {
      "ref": "p4.f8",
      "product": "Willow Pump Willow Go",
      "field": "leaks",
      "value": "Leaks dominate negative owner reports; exact assembly, consumable seals and valves, and posture when full all matter, so keeping spare parts is wise.",
      "stated_as": "Leaks dominate negative owner reports; exact assembly, consumable seals and valves, and posture when full all matter, so keeping spare parts is wise.",
      "source_type": "review",
      "source_url": "https://childcarepath.com/guides/willow-go-breast-pump-review",
      "source_read_at": "2026-10-26T00:51:02.767Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "onewillow-com",
        "display_name": "onewillow.com"
      },
      "product_id": "gid://shopify/Product/7302948618333",
      "name": "Willow Pump Willow 360® Wearable Breast Pump",
      "url": "/products/ucp/onewillow-com/7302948618333",
      "why": "The maker says the pump has a patent-pending latch designed to be leak-proof in any position.",
      "cells": [
        {
          "column": "Leak-proofing",
          "fact": {
            "field": "leak-proofing",
            "value": "The maker says the pump has a patent-pending latch designed to be leak-proof in any position.",
            "stated_as": "The only pump with a patent-pending latch that’s leak-proof in any position.",
            "source_type": "guide",
            "source_url": "https://onewillow.com/products/willow-pump-360",
            "source_read_at": "2026-10-26T00:59:31.829Z"
          }
        },
        {
          "column": "Fit",
          "fact": {
            "field": "Housing fit",
            "value": "This blog says the 360 housing is less flexible than the 3.0, which may give a more secure fit but a less natural shape and greater reliance on a well-fitted bra.",
            "stated_as": "This blog says the 360 housing is less flexible than the 3.0, which may give a more secure fit but a less natural shape and greater reliance on a well-fitted bra.",
            "source_type": "blog",
            "source_url": "https://www.genuinelactation.com/blog-for-breastfeeding-families/willow-30-and-willow-360-a-true-innovation-or-just-marketing-hype",
            "source_read_at": "2026-10-26T01:00:28.902Z"
          }
        },
        {
          "column": "Milk collection",
          "fact": {
            "field": "Collection options",
            "value": "This review says the reusable 360 container can replace bags, but bags are still necessary if the container set was not bought.",
            "stated_as": "This review says the reusable 360 container can replace bags, but bags are still necessary if the container set was not bought.",
            "source_type": "review",
            "source_url": "https://whichbreastpump.com/blogs/reviews/willow-360/",
            "source_read_at": "2026-10-26T01:00:25.762Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "onewillow-com",
        "display_name": "onewillow.com"
      },
      "product_id": "gid://shopify/Product/7681184989277",
      "name": "Willow Pump Willow 360",
      "url": "/products/ucp/onewillow-com/7681184989277",
      "why": "The pump's latch is patent-pending and claimed to be leak-proof whatever position the wearer is in.",
      "cells": [
        {
          "column": "Leak-proofing",
          "fact": {
            "field": "leak protection",
            "value": "The pump's latch is patent-pending and claimed to be leak-proof whatever position the wearer is in.",
            "stated_as": "The only pump with a patent-pending latch that’s leak-proof in any position.",
            "source_type": "guide",
            "source_url": "https://onewillow.com/products/willow-360-and-pump-anywhere-case-bundle",
            "source_read_at": "2026-10-26T00:46:10.151Z"
          }
        },
        {
          "column": "Fit",
          "fact": {
            "field": "bra fit",
            "value": "Because the housing is less flexible than the earlier model, the pump is said to depend more heavily on a well-fitting, supportive bra.",
            "stated_as": "Because the housing is less flexible than the earlier model, the pump is said to depend more heavily on a well-fitting, supportive bra.",
            "source_type": "blog",
            "source_url": "https://www.genuinelactation.com/blog-for-breastfeeding-families/willow-30-and-willow-360-a-true-innovation-or-just-marketing-hype",
            "source_read_at": "2026-10-26T00:46:38.450Z"
          }
        },
        {
          "column": "Milk collection",
          "fact": {
            "field": "milk storage compatibility",
            "value": "The pump works with either self-sealing bags or reusable milk containers, which the maker says no other pump does.",
            "stated_as": "The only pump compatible with self-sealing bags or reusable milk containers.",
            "source_type": "guide",
            "source_url": "https://onewillow.com/products/willow-360-and-pump-anywhere-case-bundle",
            "source_read_at": "2026-10-26T00:46:10.151Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/10321268080871",
      "name": "Boon TROVE 2PK",
      "url": "/products/ucp/albeebaby-com/10321268080871",
      "why": "Reports the Boon Trove is solid with no unplugged hole, so it should not leak.",
      "cells": [
        {
          "column": "Leak-proofing",
          "fact": {
            "field": "leak prevention",
            "value": "Reports the Boon Trove is solid with no unplugged hole, so it should not leak.",
            "stated_as": "Reports the Boon Trove is solid with no unplugged hole, so it should not leak.",
            "source_type": "blog",
            "source_url": "https://bemybreastfriend.com/blogs/breast-pump-comparisons/fave-breast-pumping-picks",
            "source_read_at": "2026-10-08T20:22:45.386Z"
          }
        },
        {
          "column": "Fit",
          "fact": {
            "field": "fit",
            "value": "Reports it sits in the bra cup without getting knocked off.",
            "stated_as": "Reports it sits in the bra cup without getting knocked off.",
            "source_type": "blog",
            "source_url": "https://bemybreastfriend.com/blogs/breast-pump-comparisons/fave-breast-pumping-picks",
            "source_read_at": "2026-10-08T20:22:45.386Z"
          }
        },
        {
          "column": "Milk collection",
          "fact": {
            "field": "what it is",
            "value": "TROVE is a passive silicone breast pump that sits under a bra and collects milk via suction, so milk is not lost to a disposable breast pad.",
            "stated_as": "Boon’s TROVE passive breast pump helps you collect the extra that would otherwise be lost to a disposable breast pad. TROVE sits smoothly and securely under your bra and provides firm suction that discreetly collects milk.",
            "source_type": "guide",
            "source_url": "https://booninc.com/boon-trove-silicone-breast-pump-2-pump-pack-with-plugs-travel-storage-pouch/",
            "source_read_at": "2026-10-08T20:22:30.015Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "onewillow-com",
        "display_name": "onewillow.com"
      },
      "product_id": "gid://shopify/Product/6705010016349",
      "name": "Willow Pump Willow Go",
      "url": "/products/ucp/onewillow-com/6705010016349",
      "why": "It removes enough milk for sessions away from a plug-in pump, but suction feels less strong than hospital-grade and it lacks the older Willow’s leak-proof any-position freedom.",
      "cells": [
        {
          "column": "Leak-proofing",
          "fact": {
            "field": "leaks",
            "value": "Leaks dominate negative owner reports; exact assembly, consumable seals and valves, and posture when full all matter, so keeping spare parts is wise.",
            "stated_as": "Leaks dominate negative owner reports; exact assembly, consumable seals and valves, and posture when full all matter, so keeping spare parts is wise.",
            "source_type": "review",
            "source_url": "https://childcarepath.com/guides/willow-go-breast-pump-review",
            "source_read_at": "2026-10-26T00:51:02.767Z"
          }
        },
        {
          "column": "Fit",
          "fact": null
        },
        {
          "column": "Milk collection",
          "fact": null
        }
      ]
    }
  ]
}